A paper authored by Kerry Barnett, James Howard, Renee Stullich, Adam Shipley, and Colin Treager entitled, "Air-Stable [(R3P)PdCl2]2 Complexes of Neopentylphosphines as Cross- Coupling Precatalysts: Catalytic Application and Mechanism of Catalyst Activation and Deactivation," was published in Organometallics. This paper describes the use of [(R3P)PdCl2]2 complexes as catalysts in the Suzuki coupling. A study of the mechanism of conversion of the Pd(II) precatalyst to the Pd(0) active species showed that palladacycle formation was a competitive pathway in acetonitrile. Switching the solvent to toluene eliminated formation of the palladacycle byproduct. This solvent switch allowed a 50-fold decrease in catalyst loading.
Congratulations to Shaughnessy group members who received degrees during the May Commencement ceremony.
Group members win college awards
Undergraduate research students Renee Stullich and Michelle Weyhaupt received the Distinguished Undergraduate Scholar award from the College of Arts & Sciences. This award recognizes graduating seniors who have earned all A or A+ grades at UA.
Several group members received Department or College Awards during Honor's Day.
Renee Stullich and Michelle Weyhaupt receive the Distinguished Undergraduate Scholars award that recognizes A&S students who have earned all A or A+ grades during their undergraduate career.
James Howard received the Outstanding Chemistry Undergraduate Student award that is given to Juniors pursing an ACS-certified chemistry degree and planning to pursue a career in chemistry.